CN103074901A - Slope protection building block structure for big slope angle and slope protection mode thereof - Google Patents

Abstract

The invention discloses a block structure and a slope protection method for slope protection at a large slope angle, which includes a "block net" formed by connecting square blocks and "block nets" buried in different depths through ropes and "block nets". Multi-layer geotextiles connected by stainless steel pull rings; "block net" is composed of adjacent blocks hinged to each other through buckles, and the metal buckles of adjacent blocks are tied together by iron wires; geotextiles are distributed in different depths In the soil, it is connected with the stainless steel pull ring on the back of the block through a rope. The blocks are connected to each other to form a "block net" with certain toughness. After the block structure is assembled, the "block net" is tightly covered on the slope, which solves the problem that the slope protection blocks are not stable when the slope angle is large. The phenomenon of stability, especially in areas with relatively large rainfall, the effect of large slope angles and hillsides is more obvious.

Description

Block structure and slope protection method of Dapojiao slope protection

technical field

The invention relates to a block structure for slope protection at a large slope angle and a slope protection method thereof, and belongs to the technical fields of civil engineering, transportation and water conservancy.

Background technique

  Prefabricated concrete inter-embedded blocks are more commonly used in foreign countries. The construction speed is fast, the project quality is easy to control, and the slope after construction has certain flexibility, and the overall appearance is beautiful and environmentally friendly. However, the "embedded part" on this inter-embedded block is easy to be damaged during transportation, and it is also easy to break because of its brittleness during use. In addition, the current structure composed of inter-embedded blocks cannot bear large horizontal earth pressure, so it cannot be used on slopes with large slope angles. In the slope protection project at a large slope angle, as time goes by, the soil will continue to deform, so the existing inter-embedded block structure will not adapt to this deformation, and the block will fall off, thus making the slope protection invalid.

In view of the above problems, it is necessary to innovate the block and block structure, increase the interaction force between the block and the slope, so as to increase the stability of the block slope protection.

Contents of the invention

The technical problem to be solved by the present invention is to propose a new block structure, including the slope protection method, aiming at the deficiency of the original slope protection blocks. It can be used for slope protection with large slope angles or even vertical slopes, which is more conducive to the stability of block slope protection.

The present invention uses following technical scheme:

Block Structure of Dapojiao Slope Protection

A new type of block structure used for slope protection at large slope angles, including a "block net" formed by connecting square blocks and stainless steel pull rings buried at different depths connected to the "block net" by ropes. Connected multilayer geotextiles.

The middle and four corners of the front edge of the block are prefabricated with buckles, the middle of the back is preset with a stainless steel pull ring, and there are four prefabricated hollow square holes on the block.

The "block net" is composed of adjacent blocks hinged to each other through buckles, and the metal buckles of adjacent blocks are tied together by iron wires, which increases the interaction force between the blocks, so that the blocks Form a "net".

The geotextile is distributed in the soil at different depths, and it is connected to the stainless steel pull ring on the back of the block through a 0.5-1 meter long rope, so that the geotextile and the "block net" are closely connected Form a combined structure of soil, geotextile and blocks.

Slope protection method of block structure for slope protection at large slope angle

1. The blocks of the first layer are placed stably according to the designed slope angle. Fill the back of the blocks to the height of the stainless steel pull ring in the first layer of blocks, lay the first layer of geotextile, and press with an appropriate amount of soil Tight geotextiles.

2. Connect the geotextile and the stainless steel pull ring on the first layer of blocks with ropes and tighten them.

3. Continue to fill the geotextile. When the height of the filling layer reaches the height of the stainless steel pull ring of the second layer of blocks, install the second layer of blocks. Note that the left and right joints of the second layer of blocks should be in line with the corresponding The middle positions of the first layer of blocks are aligned. Use the same method as steps 1 and 2 to complete the installation of the second layer of geotextile and ropes.

4. After the second layer of blocks is installed, use iron wire to connect the first layer of blocks and the second layer of blocks through the reserved buckle.

5. Repeat the above operations until the blocks are laid to the predetermined height.

6. Coat the metal buckle and iron wire with anti-rust paint, and pour the surrounding area with asphalt.

7. Plant plants in the small holes reserved in the blocks.

Compared with prior art, the beneficial effect of the present invention is:

1. In the present invention, the geotextile embedded in the soil is connected with the block, so that the block and the slope form an integral body. Even on a slope with a large slope angle, the stability of the block can be effectively guaranteed, so that the slope more stable.

2. The blocks are connected to each other by buckles and iron wires, so that a large number of blocks form a network structure with certain toughness. After the assembly is completed, the entire slope is covered by the "block net", which not only increases the The interaction between the blocks also makes the blocks more firmly fixed on the slope, and at the same time can adapt to the micro-deformation of the slope.

3. Since the geotextile embedded in the soil will consolidate and settle together with the soil, the blocks will be pressed against the soil by pulling the ropes, so this new block structure will not The deformation of the soil causes the blocks and the soil to fall off, but it will be more tightly combined with the slope.

4. Since there are no protruding embedded components on the block in the present invention, the damage rate of the block will be greatly reduced during transportation and use.

Description of drawings

Fig. 1 is a block diagram of the present invention.

Fig. 2 is the front view of block of the present invention.

Figure 3 is a schematic diagram of the connection between blocks and geotextiles of the present invention.

Fig. 4 is the schematic diagram after the block assembly of the present invention is completed.

In the figure: 1. Small holes reserved on the block, 2. Block buckle, 3. Stainless steel pull ring, 4. Rope, 5. Block, 6. Geotextile, 7. Filling soil

Detailed ways

Below in conjunction with accompanying drawing, the embodiment is described in detail:

The block structure of slope protection at a large slope angle includes block 5, small hole 1 reserved on the block, block buckle 2, stainless steel pull ring 3, rope 4, and geotextile 6.

Single block structure, as shown in Figure 1 and Figure 2, the middle and four corners of the front edge of the block are prefabricated with buckles, the middle of the back is preset with a stainless steel pull ring, and there are four prefabricated hollow square holes on the block.

The block structure of the big slope angle slope protection, as shown in Figure 3 and Figure 4, includes a "block net" formed by connecting square blocks 5 and buried at different depths, through the rope 4 and the "block net". "The multi-layer geotextile 6 connected by the upper stainless steel pull ring 3. The "block net" is composed of adjacent blocks hinged to each other through buckles, and the metal buckles of adjacent blocks are tied together by iron wires, which increases the interaction force between the blocks 5, so that the blocks form a Zhang "net". The geotextile 6 is distributed in the soil at different depths, and it is connected to the stainless steel pull ring 3 on the back of the block through a 0.5-1 meter long rope, so that the geotextile 6 and the "block net" are closely connected A joint structure of soil body, geotextile 6 and block 5 is formed.

Slope protection method of block structure for slope protection at large slope angle

1. After the first layer of blocks 5 is installed according to the designed slope angle, fix the blocks.

2. Fill the backfill 7 behind the blocks, compact the soil during the filling process, and lay the first layer of geotextile 6 when the thickness of the soil reaches the stainless steel pull ring 3 of the first layer of blocks.

3. Fill a certain amount of soil on the laid geotextile 6 to press the geotextile 6 firmly, connect the geotextile and the stainless steel pull ring 3 with the rope 4, and the length of the rope 4 between the stainless steel pull ring 3 and the geotextile 6 is 0.5 to 1 meter.

4. Continue filling soil on the geotextile, when the height of the filling soil 7 reaches the height of the stainless steel pull ring 3 of the second layer of blocks, discharge and install the second row of blocks on the first row of blocks.

5. When the blocks are installed, the seams of the left and right blocks should be aligned with the middle positions of the upper and lower blocks, and the buckle rings reserved on different blocks are gathered together in two areas, so that the upper, lower, left, and right sides can be connected with iron wires. The blocks are held together by the clasp 2, as shown in Figure 4.

6. Lay the second layer of geotextile 6 and compress this layer of geotextile 6 with a certain amount of soil, and connect the second layer of geotextile 6 with the second layer of stainless steel pull ring 3 by rope 4 . .

7. After the second layer of blocks is installed, connect the first layer of blocks 5 and the second layer of blocks 5 through the reserved buckle 2 with iron wires.

8. By repeating the above steps, the block 5 and the geotextile 6 can be connected layer by layer to form the block structure described in the present invention, as shown in FIG. 3 .

9. After the blocks are installed and connected, the surface of the iron wire and buckle 2 is coated with anti-rust paint and poured around them with asphalt.

10. Finally, plants (such as turf, etc.) are planted in the small hole 1 reserved in the block, which not only enhances water permeability but also prevents soil erosion. Make slope protection environmental protection, beautiful.

It should be noted that geotextiles are not necessarily laid on every layer of blocks, and a layer of geotextiles can be laid every other layer or even two layers of blocks. The specific situation needs to be determined according to the physical and mechanical properties of the soil.

Claims (2)

1. the block structure of large slope angle bank protection comprises building block, reserves aperture in the building block, the building block clasp, and the stainless steel draw ring, rope, geotextile is characterized in that:

The middle part of described building block front edge and four jiaos are prefabricated clasp, the stainless steel draw ring has been preset at middle part, the back side, also has four square cavities of prefabricated hollow out in the building block;

The block structure of described large slope angle bank protection comprises " a building block net " that is linked by square building block and is embedded in multilayer geotextile different depth, that be connected by the upper stainless steel draw ring of rope and " building block net ";

Described " building block net " is hinged by clasp by adjacent block and forms, and the metal clasp of adjacent block binds together by iron wire, has increased the interaction force between the building block, thereby makes building block form one " net ";

Described geotextile is distributed in the soil body of different depth, it is connected with the stainless steel draw ring at the building block back side by the long rope of 0.5-1 rice one by one, forms the co-ordinative construction of the soil body, geotextile and a building block thereby geotextile and " building block net " are closely connected together.

2. according to the bank protection mode of the block structure of right 1 described large slope angle bank protection, it is characterized in that may further comprise the steps:

1) building block of first floor put according to the slope angle of design stable, the stainless steel draw ring height to the first floor building block of banketing in the building block back, the geotextile of laying first floor, and with the compression geotextile that bankets in right amount;

2) with rope geotextile is linked to each other with stainless steel draw ring in the first floor building block and strain;

3) continue to banket at geotextile, when the height of fill stratum reaches the height of second layer building block stainless steel draw ring, second layer building block is installed, notice that second layer building block left and right sides seam crossing will align with the centre position of corresponding first floor building block;

Adopt the installation of finishing second layer geotextile and rope with step 1,2 identical methods;

4) after second layer building block installs, with iron wire the first floor building block is linked to each other by the clasp of reserving with second layer building block;

5) repeat aforesaid operations, until building block is routed to predetermined altitude;

6) smear metal clasp and iron wire with rustproof paint, and pour into around it with pitch;

7) planting plants in the aperture that building block is reserved.

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